Patents Assigned to LEIGH TECHNOLOGIES INC.
  • Patent number: 10697451
    Abstract: A device is taught for pumping fluid from a downhole reservoir up to surface. The device comprises a conduit extending through at least a portion an axial bore of the rotor unit and in communication with one or more recirculation inlets for receiving a recirculation stream of fluid and directing under pressure through the conduit, wherein an inside diameter and length of the conduit define a flow restriction; and one or more recirculation outlets defined in a stator unit downstream of the pump fluid intake, for delivering the recirculation stream of the fluid under pressure from the conduit and directing it at the pump fluid intake. A method is also taught for washing particulate from an intake end of a pump.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: June 30, 2020
    Assignee: LEIGH TECHNOLOGIES INC.
    Inventor: Brennon Leigh Cote